Harry M. J. Iveson

collaborators

2 papers

math.GR2026

Property $R_{\infty}$ for groups with infinitely many ends

Francesco Fournier-Facio, Harry Iveson, Armando Martino +2

We show that an accessible group with infinitely many ends has property $R_{\infty}$ . That is, it has infinitely many twisted conjugacy classes for any twisting automorphism. We de…

math.GR2025

A Presentation for the Group of Pure Symmetric Outer Automorphisms of a Given Splitting of a Free Product

Harry Iveson

We give a concise presentation for the group of pure symmetric outer automorphisms of a given splitting of a free product $G_{1} * \dots * G_{n}$ . These are the (outer) automorp…

Property R∞​ for groups with infinitely many ends

A Presentation for the Group of Pure Symmetric Outer Automorphisms of a Given Splitting of a Free Product

Property $R_{\infty}$ for groups with infinitely many ends